CA2926059A1 - Method and device for separating particles of plastic foil and particles of organic material - Google Patents
Method and device for separating particles of plastic foil and particles of organic material Download PDFInfo
- Publication number
- CA2926059A1 CA2926059A1 CA2926059A CA2926059A CA2926059A1 CA 2926059 A1 CA2926059 A1 CA 2926059A1 CA 2926059 A CA2926059 A CA 2926059A CA 2926059 A CA2926059 A CA 2926059A CA 2926059 A1 CA2926059 A1 CA 2926059A1
- Authority
- CA
- Canada
- Prior art keywords
- particles
- airflow
- rotor
- chamber
- plastic foil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/20—Stationary drums with moving interior agitators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/52—Cleaning with brushes or scrapers
- B07B1/526—Cleaning with brushes or scrapers with scrapers
- B07B1/528—Cleaning with brushes or scrapers with scrapers the scrapers being rotating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0231—Centrifugating, cyclones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/008—Wide strips, e.g. films, webs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Crushing And Pulverization Processes (AREA)
- Centrifugal Separators (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
Method and device for separating particles of plastic foil from particles of organic material, the method comprising: - arranging perforations (4) in a wall (3) of a chamber (2); - feeding a mixture comprising particles of plastic foil and particles of organic material into the chamber through a feed opening (5); - setting the introduced mixture into a rotating movement inside the chamber by means of a rotor (6) such that in the vicinity of the perforations the centrifugal force to which a particle is subjected is at least fifty times greater than the gravitational force to which the particle is subjected; - generating a first airflow in the chamber parallel to the rotation axis of the rotor; - discharging through a first discharge opening (7) particles of organic material which have left chamber through the perforations; and - discharging through a second discharge opening (8) particles of plastic foil carried along by the first airflow.
Description
Method and device for separating particles of plastic foil and particles of organic material Field of the invention The invention relates to a method for mutually separating particles of plastic foil and particles of organic material. The invention also relates to a device for mutually separating such particles according to such a method.
Background of the invention Household waste comprises a smaller or larger part of organic waste which can be processed by digestion. For this purpose the non-digestible parts such as metal, sand and glass, stone, plastic bottles and foil must first be removed. Many separating methods are known for this purpose, including shredding, pressing and screening. The remaining, substantially organic material can then be further comminuted. Cell walls will break here and a pasty material results comprising moisture and solid organic material.
In addition to particles of pasty organic material, pieces of plastic foil which have not been removed from the waste during the preceding process steps, for instance because they have been able to pass through screen openings, will however usually also be present in the comminuted material. It is important to also remove these pieces of plastic foil before admitting the comminuted material into a digester since they can disrupt the digesting process.
Many methods and devices are known for mutually separating particles of different size, weight, mass density and/or shape. Use can thus be made here of gravitational force, mass inertia or centrifugal forces. Examples hereof can be found in patent documents classified within BOID (IPC). Use can also be made of a centrifuge comprising a drum or rotor.
Examples hereof can be found within BO4B (IPC). Also known is a cyclone: a device in
Background of the invention Household waste comprises a smaller or larger part of organic waste which can be processed by digestion. For this purpose the non-digestible parts such as metal, sand and glass, stone, plastic bottles and foil must first be removed. Many separating methods are known for this purpose, including shredding, pressing and screening. The remaining, substantially organic material can then be further comminuted. Cell walls will break here and a pasty material results comprising moisture and solid organic material.
In addition to particles of pasty organic material, pieces of plastic foil which have not been removed from the waste during the preceding process steps, for instance because they have been able to pass through screen openings, will however usually also be present in the comminuted material. It is important to also remove these pieces of plastic foil before admitting the comminuted material into a digester since they can disrupt the digesting process.
Many methods and devices are known for mutually separating particles of different size, weight, mass density and/or shape. Use can thus be made here of gravitational force, mass inertia or centrifugal forces. Examples hereof can be found in patent documents classified within BOID (IPC). Use can also be made of a centrifuge comprising a drum or rotor.
Examples hereof can be found within BO4B (IPC). Also known is a cyclone: a device in
2 which a more or less free vortex or swirling is created. Examples hereof can be found within BO4C (IPC). It is further known to screen and divide particles according to size, by means of screens, grids and the like, or according to weight and/or size by means of gas or airflows, wherein gravitational force and/or air resistance play a part.
Examples hereof can be found in patent documents classified within BO7B ([PC).
US20090230224A1 thus describes a system for 'separating glass and plastic foils in laminated glass'. Use is made here of a drum with a rotor rotating therein provided with beaters with which the glass is broken into pieces. The heavier glass particles then fall downward and through perforations arranged in the underside of the drum. The lighter foil particles are carried along by an airflow generated by blades arranged on the rotor. Such a system is found to be unsuitable for separating pieces of plastic foil and particles of pasty organic material because an effective and sufficient separation thereof is not possible on the basis of gravitational force and air resistance. The perforations will also quickly become clogged and the yield will be minimal. JP2002177888A describes a device for separating foreign matter from organic waste. Use is made here of a drum which is provided on the underside with perforations, and a rotor rotating in the drum and provided with vanes which slide along the inner side of the drum. Following introduction of the waste into the drum the waste is shredded and comminuted. The organic material drops to the underside of the drum and leaves the drum through the perforations there, assisted here by the vanes. Foreign materials are further carried away by an airflow. This system is also found to be unsuitable for separating pieces of plastic foil and particles of pasty organic material because an effective and sufficient separation thereof is not possible on the basis of gravitational force and air resistance. Here too the perforations will also become quickly clogged and the yield will be minimal.
Many other systems for mutually separating particles of different size, weight, mass density and/or shape are thus known. None of these known systems is however found to be suitable in practice for effective and sufficient mutual separation of said pieces of plastic foil and particles of pasty organic material. There is therefore a need for a solution here.
The present invention now provides this.
Examples hereof can be found in patent documents classified within BO7B ([PC).
US20090230224A1 thus describes a system for 'separating glass and plastic foils in laminated glass'. Use is made here of a drum with a rotor rotating therein provided with beaters with which the glass is broken into pieces. The heavier glass particles then fall downward and through perforations arranged in the underside of the drum. The lighter foil particles are carried along by an airflow generated by blades arranged on the rotor. Such a system is found to be unsuitable for separating pieces of plastic foil and particles of pasty organic material because an effective and sufficient separation thereof is not possible on the basis of gravitational force and air resistance. The perforations will also quickly become clogged and the yield will be minimal. JP2002177888A describes a device for separating foreign matter from organic waste. Use is made here of a drum which is provided on the underside with perforations, and a rotor rotating in the drum and provided with vanes which slide along the inner side of the drum. Following introduction of the waste into the drum the waste is shredded and comminuted. The organic material drops to the underside of the drum and leaves the drum through the perforations there, assisted here by the vanes. Foreign materials are further carried away by an airflow. This system is also found to be unsuitable for separating pieces of plastic foil and particles of pasty organic material because an effective and sufficient separation thereof is not possible on the basis of gravitational force and air resistance. Here too the perforations will also become quickly clogged and the yield will be minimal.
Many other systems for mutually separating particles of different size, weight, mass density and/or shape are thus known. None of these known systems is however found to be suitable in practice for effective and sufficient mutual separation of said pieces of plastic foil and particles of pasty organic material. There is therefore a need for a solution here.
The present invention now provides this.
3 Summary of the invention The invention provides a method as according to claim 1 and a device as according to claim 7. The heavier particles of organic material are flung outward perpendicularly of the rotation axis of the rotor by the rapid rotating movement and the high centrifugal forces, and discharged through the perforations to the first discharge opening. With a correct size of the perforations and a sufficient velocity of the first airflow the lighter particles are not allowed through the perforations, or much less so, and are carried along by the first airflow parallel to the rotation axis of the rotor to the second discharge opening. A
separation of the introduced mixture thus takes place. The terms 'parallel' and 'perpendicular' are understood in the context of the invention to mean 'at least substantially, on the whole, parallel and perpendicular'.
The first airflow can be generated by a number of first blades forming part of the rotor and placed obliquely of the rotation axis. Discharge of particles of plastic foil carried along by the first airflow through the second discharge opening can take place at least partially by means of a second airflow generated by a number of second blades forming part of the rotor and placed parallel to the rotation axis. The first airflow and the second airflow can thus be generated by the rotor and a separate fan/fans is/are not necessary, and the rotating movement and the totality of airflows are generated by the rotor alone. The rotor can further comprise third blades here for removing material present on a side of the wall facing toward the chamber, for which purpose the outer ends of the third blades are situated in the vicinity of this side of the wall.
Brief description of the drawings The invention is elucidated hereinbelow on the basis of non-limitative exemplary embodiments and accompanying drawings. More or less schematically in the drawings:
30 - figure 1 shows a cross-section of a first embodiment of a device according to the invention; and
separation of the introduced mixture thus takes place. The terms 'parallel' and 'perpendicular' are understood in the context of the invention to mean 'at least substantially, on the whole, parallel and perpendicular'.
The first airflow can be generated by a number of first blades forming part of the rotor and placed obliquely of the rotation axis. Discharge of particles of plastic foil carried along by the first airflow through the second discharge opening can take place at least partially by means of a second airflow generated by a number of second blades forming part of the rotor and placed parallel to the rotation axis. The first airflow and the second airflow can thus be generated by the rotor and a separate fan/fans is/are not necessary, and the rotating movement and the totality of airflows are generated by the rotor alone. The rotor can further comprise third blades here for removing material present on a side of the wall facing toward the chamber, for which purpose the outer ends of the third blades are situated in the vicinity of this side of the wall.
Brief description of the drawings The invention is elucidated hereinbelow on the basis of non-limitative exemplary embodiments and accompanying drawings. More or less schematically in the drawings:
30 - figure 1 shows a cross-section of a first embodiment of a device according to the invention; and
4 -figure 2 shows a cross-section of a second embodiment of a device according to the invention.
Exemplary embodiments The device (100) shown in figure 1 comprises a cylindrical housing (1) having therein a cylindrical chamber (2), the wall (3) of which is provided with perforations (4) with a diameter of for instance 5 mm, and a feed opening (5) for infeed (A) of a mixture of particles of organic material and particles of plastic foil to be separated.
The material has earlier been pressed through a screen with openings of a diameter of for instance 8 mm (not shown). Softer organic material is comminuted here to particles of organic material.
The particles of plastic foil have also passed through the screen here. In the given example the mixture for separating is introduced (A) by means of an auger or worm screw (12).
Device (100) further comprises a first discharge opening (7) for discharging (C) separated particles of organic material and a second discharge opening (8) for discharging (D) separated particles of plastic foil. Placed in chamber (2) is a rotor (6) which can bring about a great centrifugal acceleration, for instance 150 to 200 times the acceleration of gravitational force, in the vicinity of the wall at a rotation speed of for instance 500 to 1000 revolutions per minute. Rotor (6) comprises a number of first blades (9) lying obliquely of the rotation axis of rotor (6) and a number of second blades (10) which are located in the vicinity of second discharge opening (8) and are parallel to the rotation axis of rotor (6).
Second discharge opening (8) is placed tangentially relative to rotor (6), in this case second blades (10).
In accordance with a method according to the invention the mixture of particles of plastic foil and particles of organic material to be separated is introduced (A) into chamber (2) through feed opening (5) by means of auger (12). Inside chamber (2) the mixture is set into a rapid rotating movement by rotor (6), in this case first blades (9). First blades (9) lie obliquely of the rotation axis of rotor (6) such that a first airflow (B) is generated inside chamber (2) parallel to the rotation axis of rotor (6) with a speed of for instance 15 m/s at a flow rate of for instance 4000 m3/h. The heavier particles of organic material are flung outward perpendicularly of the rotation axis of rotor (6) by the rotating movement and discharged through perforations (4) to first discharge opening (7). The particles of organic material will partially deform here during passage through perforations (4).
The lighter particles of plastic foil are carried along by first airflow (B) parallel to the rotation axis of
Exemplary embodiments The device (100) shown in figure 1 comprises a cylindrical housing (1) having therein a cylindrical chamber (2), the wall (3) of which is provided with perforations (4) with a diameter of for instance 5 mm, and a feed opening (5) for infeed (A) of a mixture of particles of organic material and particles of plastic foil to be separated.
The material has earlier been pressed through a screen with openings of a diameter of for instance 8 mm (not shown). Softer organic material is comminuted here to particles of organic material.
The particles of plastic foil have also passed through the screen here. In the given example the mixture for separating is introduced (A) by means of an auger or worm screw (12).
Device (100) further comprises a first discharge opening (7) for discharging (C) separated particles of organic material and a second discharge opening (8) for discharging (D) separated particles of plastic foil. Placed in chamber (2) is a rotor (6) which can bring about a great centrifugal acceleration, for instance 150 to 200 times the acceleration of gravitational force, in the vicinity of the wall at a rotation speed of for instance 500 to 1000 revolutions per minute. Rotor (6) comprises a number of first blades (9) lying obliquely of the rotation axis of rotor (6) and a number of second blades (10) which are located in the vicinity of second discharge opening (8) and are parallel to the rotation axis of rotor (6).
Second discharge opening (8) is placed tangentially relative to rotor (6), in this case second blades (10).
In accordance with a method according to the invention the mixture of particles of plastic foil and particles of organic material to be separated is introduced (A) into chamber (2) through feed opening (5) by means of auger (12). Inside chamber (2) the mixture is set into a rapid rotating movement by rotor (6), in this case first blades (9). First blades (9) lie obliquely of the rotation axis of rotor (6) such that a first airflow (B) is generated inside chamber (2) parallel to the rotation axis of rotor (6) with a speed of for instance 15 m/s at a flow rate of for instance 4000 m3/h. The heavier particles of organic material are flung outward perpendicularly of the rotation axis of rotor (6) by the rotating movement and discharged through perforations (4) to first discharge opening (7). The particles of organic material will partially deform here during passage through perforations (4).
The lighter particles of plastic foil are carried along by first airflow (B) parallel to the rotation axis of
5 rotor (6) to second discharge opening (8) and there blown out (D).
Blowing out (D) is enhanced by a second airflow which is generated by the second blades (10) and which hereby also enhances the totality of airflows (B-D). It is found in practice that the heavier particles of organic material are flung outward through perforations (4) mainly in a first part (E) of chamber (2). Air which entrains (B) the lighter particles of plastic foil is mainly drawn into the chamber through perforations (4) in a second part (F) of chamber (2).
Advantageous is that rotor (6), in addition to generating the rotating movement, also generates the first airflow (B) and the second airflow (D). This makes the device less complex, less expensive, less susceptible to malfunction and requiring less maintenance, since separate fans are thus not necessary. For a good separation of a given mixture parameters such as feed flow rate, centrifugal acceleration and airflow velocities will of course have to be correctly adjusted to each other.
Device (200) shown in figure 2 again comprises a cylindrical housing (1) having therein a cylindrical chamber (2), the wall (3) of which is again provided with perforations (4), and a rotor (6). The position of rotor (6) is now however not vertical but horizontal. This is possible because the influence of gravitational force is negligible in relation to the relatively high centrifugal accelerations and air velocities. This can be favourable for instance in respect of the space taken up and the lower height of the device.
Device (200) also comprises a number of third blades (11) forming part of rotor (6) for the purpose of removing material present on the inner side (13) of wall (3) of chamber (2). The outer ends of third blades (11) are situated for this purpose in the vicinity of this inner side (13). Material possibly accumulating on this inner side (13), in particular between first 30 blades (9), can thus be removed from this inner side.
Blowing out (D) is enhanced by a second airflow which is generated by the second blades (10) and which hereby also enhances the totality of airflows (B-D). It is found in practice that the heavier particles of organic material are flung outward through perforations (4) mainly in a first part (E) of chamber (2). Air which entrains (B) the lighter particles of plastic foil is mainly drawn into the chamber through perforations (4) in a second part (F) of chamber (2).
Advantageous is that rotor (6), in addition to generating the rotating movement, also generates the first airflow (B) and the second airflow (D). This makes the device less complex, less expensive, less susceptible to malfunction and requiring less maintenance, since separate fans are thus not necessary. For a good separation of a given mixture parameters such as feed flow rate, centrifugal acceleration and airflow velocities will of course have to be correctly adjusted to each other.
Device (200) shown in figure 2 again comprises a cylindrical housing (1) having therein a cylindrical chamber (2), the wall (3) of which is again provided with perforations (4), and a rotor (6). The position of rotor (6) is now however not vertical but horizontal. This is possible because the influence of gravitational force is negligible in relation to the relatively high centrifugal accelerations and air velocities. This can be favourable for instance in respect of the space taken up and the lower height of the device.
Device (200) also comprises a number of third blades (11) forming part of rotor (6) for the purpose of removing material present on the inner side (13) of wall (3) of chamber (2). The outer ends of third blades (11) are situated for this purpose in the vicinity of this inner side (13). Material possibly accumulating on this inner side (13), in particular between first 30 blades (9), can thus be removed from this inner side.
6 With a method and device according to the invention it is possible to realize a very good separation, with for instance a percentage of plastic foil of less than 0.1%
in the remaining organic fraction, this being a considerable improvement on results achieved with known methods and devices.
It will be apparent that the invention is not limited to the shown and described exemplary embodiments but that diverse variants which will be obvious to a skilled person are possible within the scope of the invention. In addition to being used for mutual separation of particles of plastic foil and particles of organic material, the invention can thus also be applied for mutual separation of other types of lighter and heavier particles.
Infeed can also take place other than by means of an auger or worm screw, for instance by simply making use of gravitational force.
in the remaining organic fraction, this being a considerable improvement on results achieved with known methods and devices.
It will be apparent that the invention is not limited to the shown and described exemplary embodiments but that diverse variants which will be obvious to a skilled person are possible within the scope of the invention. In addition to being used for mutual separation of particles of plastic foil and particles of organic material, the invention can thus also be applied for mutual separation of other types of lighter and heavier particles.
Infeed can also take place other than by means of an auger or worm screw, for instance by simply making use of gravitational force.
Claims (14)
1. Method for mutually separating particles of plastic foil and particles of organic material, the method comprising of:
- arranging perforations (4) in a wall (3) of a chamber (2);
- feeding (A) a mixture comprising particles of plastic foil and particles of organic material into the chamber through a feed opening (5) provided for the purpose;
- setting the introduced mixture into a rotating movement inside the chamber by means of a rotor (6) such that in the vicinity of the perforations the centrifugal force to which a particle is subjected is at least fifty times greater than the gravitational force to which the particle is subjected;
- generating a first airflow (B) in the chamber parallel to the rotation axis of the rotor;
- discharging (C) through a first discharge opening (7) particles of organic material which have left chamber through the perforations; and - discharging (D) through a second discharge opening (8) particles of plastic foil carried along by the first airflow.
- arranging perforations (4) in a wall (3) of a chamber (2);
- feeding (A) a mixture comprising particles of plastic foil and particles of organic material into the chamber through a feed opening (5) provided for the purpose;
- setting the introduced mixture into a rotating movement inside the chamber by means of a rotor (6) such that in the vicinity of the perforations the centrifugal force to which a particle is subjected is at least fifty times greater than the gravitational force to which the particle is subjected;
- generating a first airflow (B) in the chamber parallel to the rotation axis of the rotor;
- discharging (C) through a first discharge opening (7) particles of organic material which have left chamber through the perforations; and - discharging (D) through a second discharge opening (8) particles of plastic foil carried along by the first airflow.
2. Method as claimed in claim 1, wherein perforations with a cross-section smaller than the average cross-section of the particles of foil are arranged in the wall.
3. Method as claimed in claim 1 or 2, wherein a large first airflow is generated such that in the vicinity of the perforations a force to which a particle of plastic foil is subjected as a result of the first airflow is greater than a centrifugal force to which the particle of plastic foil is subjected.
4. Method as claimed in any of the claims 1-3, wherein the first airflow (B) is generated for at least the greater part by means of the rotor.
5. Method as claimed in any of the claims 1-4, wherein the discharge (D) through the second discharge opening of particles of plastic foil carried along by the first airflow takes place at least partially by means of a second airflow.
6. Method as claimed in claim 5, wherein the second airflow is generated for at least the greater part by means of the rotor.
7. Device (100,200) for mutually separating particles of plastic foil and particles of organic material, the device comprising:
- a housing (1);
- a chamber (2) which is situated inside the housing and a wall (3) of which is provided with perforations (4);
- a feed opening (5) for feeding a mixture comprising particles of plastic foil and particles of organic material into the chamber;
- a rotor (6) placed in the chamber and suitable for setting the introduced mixture into a rotating movement such that in the vicinity of the perforations the centrifugal force to which a particle is subjected is at least fifty times greater than the gravitational force to which the particle is subjected;
- first means suitable for generating a first airflow (B) in the chamber parallel to the rotation axis of the rotor:
- a first discharge opening (7) for discharging (C) particles of organic material which have left the chamber through the perforations; and - a second discharge opening (8) for discharging particles of plastic foil carried along by the first airflow.
- a housing (1);
- a chamber (2) which is situated inside the housing and a wall (3) of which is provided with perforations (4);
- a feed opening (5) for feeding a mixture comprising particles of plastic foil and particles of organic material into the chamber;
- a rotor (6) placed in the chamber and suitable for setting the introduced mixture into a rotating movement such that in the vicinity of the perforations the centrifugal force to which a particle is subjected is at least fifty times greater than the gravitational force to which the particle is subjected;
- first means suitable for generating a first airflow (B) in the chamber parallel to the rotation axis of the rotor:
- a first discharge opening (7) for discharging (C) particles of organic material which have left the chamber through the perforations; and - a second discharge opening (8) for discharging particles of plastic foil carried along by the first airflow.
8. Device as claimed in claim 7, wherein the cross-section of the perforations is smaller than the average cross-section of the particles of foil.
9. Device as claimed in claim 7 or 8, wherein the first means are suitable for generating a large first airflow such that in the vicinity of the perforations the force to which a particle of plastic foil is subjected as a result of the first airflow is greater than the centrifugal force to which the particle of plastic foil is subjected.
10. Device as claimed in claim 9, wherein the first means comprise a number of first blades (9) which form part of the rotor and the active surfaces of which lie obliquely of the rotation axis of the rotor.
11. Device as claimed in any of the claims 7-10, wherein the device also comprises second means for generating a second airflow for discharging (D) through the second discharge opening particles of plastic foil carried along by the first airflow.
12. Device as claimed in claim 11, wherein the second means comprise a number of second blades (10) which form part of the rotor and the active surfaces of which are parallel to the rotation axis of the rotor.
13. Device (200) as claimed in any of the claims 7-12, wherein the device also comprises third means for removing material present on a side (13) of the wall facing toward the chamber.
14. Device as claimed in claim 13, wherein the third means comprise a number of third blades (11) which form part of the rotor and the outer ends of which are situated in the vicinity of the side of the wall facing toward the chamber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1040425A NL1040425C2 (en) | 2013-10-02 | 2013-10-02 | METHOD AND DEVICE FOR SEPARATING LIGHER PARTICLES AND HEAVIER PARTICLES |
| NL1040425 | 2013-10-02 | ||
| PCT/NL2014/000030 WO2015050433A1 (en) | 2013-10-02 | 2014-09-15 | Method and device for separating particles of plastic foil and particles of organic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2926059A1 true CA2926059A1 (en) | 2015-04-09 |
| CA2926059C CA2926059C (en) | 2018-06-26 |
Family
ID=51691121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2926059A Active CA2926059C (en) | 2013-10-02 | 2014-09-15 | Method and device for separating particles of plastic foil and particles of organic material |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US10160011B2 (en) |
| EP (1) | EP3052251B1 (en) |
| CN (1) | CN105722610A (en) |
| CA (1) | CA2926059C (en) |
| NL (1) | NL1040425C2 (en) |
| WO (1) | WO2015050433A1 (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11286507B2 (en) | 2013-07-11 | 2022-03-29 | Anaergia Inc. | Anaerobic digestion and pyrolysis system |
| US11180391B2 (en) | 2013-10-02 | 2021-11-23 | Anaergia B.V. | Method and device for processing solid waste |
| NL1040425C2 (en) | 2013-10-02 | 2015-04-07 | Technologies Holding B V D | METHOD AND DEVICE FOR SEPARATING LIGHER PARTICLES AND HEAVIER PARTICLES |
| WO2016123714A1 (en) | 2015-02-06 | 2016-08-11 | Anaergia Inc. | Solid waste treatment with conversion to gas and anaerobic digestion |
| EP3121261B1 (en) | 2015-07-20 | 2019-05-15 | Anaergia Inc. | Production of biogas from organic materials |
| CN108472696A (en) * | 2015-11-02 | 2018-08-31 | 安那吉亚有限责任公司 | Method and apparatus for handling solid waste |
| ZA201602521B (en) | 2016-03-18 | 2018-07-25 | Anaergia Inc | Solid waste processing wih pyrolysis of cellulosic waste |
| US11103811B2 (en) | 2016-11-04 | 2021-08-31 | Icm, Inc. | Mechanical separation devices |
| WO2018129616A1 (en) | 2017-01-12 | 2018-07-19 | Anaergia Inc. | Solid waste processing with diversion of cellulosic waste |
| CN108618163A (en) * | 2017-03-20 | 2018-10-09 | 东北林业大学 | A kind of camellia oleifera fruit spiral feeding sifter |
| GB2561018B (en) | 2017-03-27 | 2021-09-08 | Anaergia Inc | Process for recovering organics from material recovery facility fines |
| FR3064930B1 (en) * | 2017-04-07 | 2019-06-14 | Axibio | DEVICE FOR TREATING WASTE |
| FR3064932B1 (en) * | 2017-04-07 | 2019-06-14 | Axibio | FOOD HOPPER |
| FR3064931B1 (en) * | 2017-04-07 | 2019-06-14 | Axibio | DEVICE FOR TREATING WASTE |
| US20180369828A1 (en) * | 2017-06-22 | 2018-12-27 | Marc Vanderbeken | Method and Apparatus for separating organics from a contaminated organics-inorganics waste stream |
| CN107127139A (en) * | 2017-06-28 | 2017-09-05 | 长兴金耀再生资源利用有限公司 | A kind of rubbish from cooking separator |
| AU2018306141B2 (en) * | 2017-07-25 | 2024-04-04 | Cesaro Mac Import S.R.L. | A treatment apparatus of a waste product for separating recycling fractions |
| IT201700084595A1 (en) * | 2017-07-25 | 2019-01-25 | Cesaro Mac Imp S R L | APPARATUS FOR THE SELECTION OF ORGANIC WASTE |
| US20190374883A1 (en) * | 2018-06-10 | 2019-12-12 | Icm, Inc. | Mechanical separation device |
| CN112271041B (en) * | 2020-09-21 | 2022-07-15 | 安徽省金鸿电线电缆有限公司 | Broken copper of cable moulds separator |
Family Cites Families (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2793847A (en) * | 1955-12-29 | 1957-05-28 | Marie J Steele | Industrial gas purifier |
| US2954173A (en) * | 1958-12-11 | 1960-09-27 | Archibald B Dunwody | Process for cleaning and pulping waste |
| US4106705A (en) | 1977-04-04 | 1978-08-15 | Kensaku Nakamura | Resin material reclaiming machine |
| CH620859A5 (en) * | 1977-04-22 | 1980-12-31 | Kensaku Nakamura | System for reclaiming plastics |
| US4245999A (en) * | 1978-08-25 | 1981-01-20 | Kenneth S. Safe, Jr. | Method and apparatus for obtaining low ash content refuse fuel, paper and plastic products from municipal solid waste and said products |
| US4287058A (en) | 1979-12-04 | 1981-09-01 | Fmc Corporation | Apparatus for separating liquid-solid mixtures |
| CA1117851A (en) | 1980-05-09 | 1982-02-09 | Herman Victorov | Liquids extractor and process for extracting same |
| DE8103406U1 (en) | 1981-02-09 | 1981-04-23 | Eberhard Wagner Gmbh & Co Kg, 7402 Kirchentellinsfurt | WASTE PRESSING DEVICE FOR LIQUID WASTE |
| IT8821956A0 (en) | 1988-09-15 | 1988-09-15 | Vezzani Spa | PROCEDURE FOR THE RECYCLING AND REUSE OF WASTE, AND IN PARTICULAR MUNICIPAL SOLID WASTE |
| CN2072442U (en) | 1990-09-12 | 1991-03-06 | 河南省南阳光辉机械厂 | Screening materials carrying and hoisting device |
| US5146848A (en) | 1991-01-30 | 1992-09-15 | Henri Dufour | Apparatus for recovering liquid from liquid-filled containers |
| DE4216638C1 (en) * | 1992-05-20 | 1993-09-16 | Daimler-Benz Aktiengesellschaft, 70567 Stuttgart, De | |
| DE4307789C3 (en) * | 1993-03-12 | 2000-02-24 | Buehler Ag | Control screening device and use of the device |
| ATE151065T1 (en) | 1993-04-22 | 1997-04-15 | Beg Bioenergie Gmbh | METHOD AND DEVICE FOR COMPOSTING AND WET FERMENTATION OF BIOLOGICAL WASTE |
| US5597076A (en) * | 1994-12-30 | 1997-01-28 | Kershner; Robert | Grain separator |
| DE19602489A1 (en) | 1996-01-25 | 1997-07-31 | Christian Widmer | Process for the biological treatment of organic materials and device for carrying out the process |
| DE19616623B4 (en) * | 1996-04-25 | 2004-12-23 | Der Grüne Punkt - Duales System Deutschland Ag | Device for the separation of tough elastic materials such as plastics and of materials that shred under mechanical stress such as paper |
| CA2279988C (en) * | 1997-03-14 | 2006-08-08 | E.I. Du Pont De Nemours And Company | Apparatus for breaking and separating particles |
| US5890664A (en) | 1997-07-22 | 1999-04-06 | Conant, Iii; Jess Austin | Transportable, self-contained, fully automated composter |
| EP1083993A1 (en) | 1998-06-03 | 2001-03-21 | Baker Hughes Incorporated | Cantilever centrifuge with outwardly tapered second conical bowl section |
| IT1320836B1 (en) | 2000-11-17 | 2003-12-10 | Vm Press Srl | PRESS-EXTRUSION MACHINE FOR SOLID WASTE TREATMENT. |
| IT1320861B1 (en) | 2000-12-15 | 2003-12-10 | Vm Press Srl | PROCESS AND PLANT FOR THE TREATMENT OF URBAN SOLID WASTE. |
| JP3666800B2 (en) * | 2000-12-18 | 2005-06-29 | 鹿島建設株式会社 | Garbage-like waste foreign matter separator |
| ZA200601464B (en) * | 2003-09-03 | 2007-06-27 | United Resource Recovery Corp | Dry separation of contaminants from polyester materials |
| ITTO20040109A1 (en) | 2004-02-26 | 2004-05-26 | Vm Press Srl | WASTE COMPACTING MACHINE |
| DK176492B1 (en) | 2006-06-30 | 2008-05-19 | Shark Solutions As | Method and apparatus for separating glass and plastic film into laminated glass |
| US7410583B2 (en) | 2006-08-10 | 2008-08-12 | East Bay Municipal Utility District | Process of treating organic waste for anaerobic digestion |
| ITMI20071233A1 (en) * | 2007-06-20 | 2008-12-21 | Lucra 96 S R L | APPARATUS FOR THE SELECTION OF ORGANIC WASTE MATERIAL INTENDED TO BE RECYCLED |
| WO2009011906A1 (en) | 2007-07-18 | 2009-01-22 | E3Bioenergy, Llc | Super compaction of biomass and other carbon-containing materials to high energy content fuels |
| CN201135965Y (en) | 2007-10-24 | 2008-10-22 | 潍坊汇英重机有限公司 | Packing auger screen grader |
| US8632024B2 (en) | 2010-01-25 | 2014-01-21 | Organic Energy Corporation | Systems and methods for processing mixed solid waste |
| US8882999B2 (en) * | 2010-06-17 | 2014-11-11 | Dow Global Technologies Llc | Cleaning assembly for use in fluid filtration systems |
| DE102010034119A1 (en) | 2010-08-12 | 2012-02-16 | Automatik Plastics Machinery Gmbh | Device for drying granular grain, has rotor blade provided with dewatering wire aperture whose size is smaller than size of granular grain such that process fluid is separated by passage from wire front side to wire back side of grain |
| PL2554638T3 (en) | 2011-08-01 | 2019-12-31 | Zweckverband Abfallbehandlung Kahlenberg | Method and device for mechanical or mechanical-biological treatment of waste |
| ITTO20111068A1 (en) | 2011-11-21 | 2013-05-22 | Vm Press Srl | MATERIAL HANDLING MACHINE WITH WET ORGANIC CONTENT |
| US9561978B2 (en) | 2012-04-20 | 2017-02-07 | Anaergia Inc. | Sludge screw thickener with screen rotation during cleaning |
| ITTO20120456A1 (en) | 2012-05-25 | 2013-11-26 | Vm Press Srl | PROCESS FOR THE PRODUCTION OF COMBUSTIBLE GAS FROM URBAN SOLID WASTE. |
| CN103711018B (en) * | 2012-09-29 | 2017-12-22 | 冯秀娟 | The dispersion machine of impurity in a kind of removable fibrous |
| JP5948223B2 (en) * | 2012-11-02 | 2016-07-06 | ユニ・チャーム株式会社 | Separation apparatus and separation method for material related to absorbent article |
| JP5948221B2 (en) * | 2012-11-02 | 2016-07-06 | ユニ・チャーム株式会社 | Separation apparatus and separation method for material related to absorbent article |
| SE537075C2 (en) | 2012-12-21 | 2014-12-30 | Cassandra Oil Technology Ab | Reactor, method of reducing the amount of solid particles accompanying a gas stream from a reactor and use of the reactor |
| NL1040425C2 (en) | 2013-10-02 | 2015-04-07 | Technologies Holding B V D | METHOD AND DEVICE FOR SEPARATING LIGHER PARTICLES AND HEAVIER PARTICLES |
| US11180391B2 (en) * | 2013-10-02 | 2021-11-23 | Anaergia B.V. | Method and device for processing solid waste |
| NL1040442C2 (en) | 2013-10-13 | 2015-04-14 | Technologies Holding B V D | DEVICE AND METHOD FOR PRESSING ORGANIC MATERIAL FROM WASTE. |
| WO2015084901A1 (en) * | 2013-12-05 | 2015-06-11 | Dow Global Technologies Llc | Hydroclone with improved cleaning assembly |
| US20160339478A1 (en) * | 2015-05-18 | 2016-11-24 | Kun Sheng Machine Co., Ltd. | Dry-type cleaning machine |
-
2013
- 2013-10-02 NL NL1040425A patent/NL1040425C2/en active
-
2014
- 2014-09-15 EP EP14783912.0A patent/EP3052251B1/en active Active
- 2014-09-15 CN CN201480062244.0A patent/CN105722610A/en active Pending
- 2014-09-15 WO PCT/NL2014/000030 patent/WO2015050433A1/en active Application Filing
- 2014-09-15 CA CA2926059A patent/CA2926059C/en active Active
- 2014-09-15 US US15/026,355 patent/US10160011B2/en active Active
-
2018
- 2018-11-15 US US16/191,834 patent/US10807124B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US10807124B2 (en) | 2020-10-20 |
| EP3052251A1 (en) | 2016-08-10 |
| NL1040425C2 (en) | 2015-04-07 |
| CN105722610A (en) | 2016-06-29 |
| US20160221040A1 (en) | 2016-08-04 |
| WO2015050433A1 (en) | 2015-04-09 |
| EP3052251B1 (en) | 2021-11-03 |
| CA2926059C (en) | 2018-06-26 |
| US20190084006A1 (en) | 2019-03-21 |
| US10160011B2 (en) | 2018-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10807124B2 (en) | Method and device for separating particles of plastic foil and particles of organic material | |
| JP3294241B2 (en) | Method for treating mixed waste and treatment plant for implementing the method | |
| JP6057425B2 (en) | Automobile shredder dust separation device | |
| BR112016005916B1 (en) | crushing device | |
| CA2566835C (en) | Classification of splinters and wood chips | |
| KR101523635B1 (en) | Apparatus and method for manufacturing dry type recycled aggregates of air circulation type | |
| JP4625130B2 (en) | Airflow separation device | |
| JP2007050354A (en) | Powder extraction apparatus | |
| DK164814B (en) | PROCEDURE AND APPARATUS FOR REMOVING KNOTS FROM KNOT-CONTAINING MINERAL WOOL FIBER | |
| JP5497443B2 (en) | Material particle size selection and / or drying equipment | |
| CN108884600B (en) | Method and device for treating a filtering material and product obtained | |
| JP2023503684A (en) | Grinding equipment | |
| JP2005524532A (en) | Method and apparatus for processing materials or composite materials and mixtures | |
| JP4383073B2 (en) | Cyclone type air flow separation device | |
| KR101884797B1 (en) | Apparatus for Removing Alien Substances of dry-type separator | |
| JP6262907B1 (en) | Powder classification device and classification system | |
| CN102631988B (en) | Magnetic-field air-separating device | |
| KR101294029B1 (en) | separating apparatus of wasted electric wire | |
| JP2008536722A (en) | Apparatus and method for separating ultrafine particle size from non-agglomerated mass of woody material | |
| CN207857365U (en) | A kind of winnowing machine of primary processing of tea production line | |
| JP4982601B2 (en) | Airflow separation device | |
| JP2005288270A (en) | Crushing and classifying apparatus | |
| RU2414969C1 (en) | Air two-product classifier | |
| JP6298776B2 (en) | Classification bug filter | |
| CN202290266U (en) | Air separation device of solid waste |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20160511 |